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Long-term debt (Tables)
12 Months Ended
Oct. 31, 2011
Long Term Debt (Tables) [Abstract]  
Long-term debt
                 
    2011     2010  

Revolving credit agreement, due 2017

  $ 192,200     $ 46,000  

Senior notes, due 2005-2011

          14,260  

Private shelf facility, due 2012-2020

    75,000        

Senior notes, due 2013

    50,000       50,000  

Development loans, due 2011-2026

    1,923        
   

 

 

   

 

 

 
      319,123       110,260  

Less current maturities

    5,664       14,260  
   

 

 

   

 

 

 

Long-term maturities

  $ 313,459     $ 96,000